AMD Ryzen 9 8945HS vs AMD Ryzen 7 7840H

Comparative analysis of AMD Ryzen 9 8945HS and AMD Ryzen 7 7840H processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Peripherals. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark.

 

Differences

Reasons to consider the AMD Ryzen 9 8945HS

  • CPU is newer: launch date 11 month(s) later
  • Around 2% higher clock speed: 5.2 GHz vs 5.1 GHz
  • 1048576x more L2 cache, more data can be stored in the L2 cache for quick access later
  • 1048576x more L3 cache, more data can be stored in the L3 cache for quick access later
  • Around 4% better performance in PassMark - Single thread mark: 3877 vs 3720
  • Around 4% better performance in PassMark - CPU mark: 29474 vs 28390
Specifications (specs)
Launch date 6 Dec 2023 vs Jan 2023
Maximum frequency 5.2 GHz vs 5.1 GHz
L2 cache 1 MB (per core) vs 1MB (per core)
L3 cache 16 MB (shared) vs 16MB (shared)
Benchmarks
PassMark - Single thread mark 3877 vs 3720
PassMark - CPU mark 29474 vs 28390

Reasons to consider the AMD Ryzen 7 7840H

  • Around 29% lower typical power consumption: 35 Watt vs 45 Watt
Thermal Design Power (TDP) 35 Watt vs 45 Watt

Compare benchmarks

CPU 1: AMD Ryzen 9 8945HS
CPU 2: AMD Ryzen 7 7840H

PassMark - Single thread mark
CPU 1
CPU 2
3877
3720
PassMark - CPU mark
CPU 1
CPU 2
29474
28390
Name AMD Ryzen 9 8945HS AMD Ryzen 7 7840H
PassMark - Single thread mark 3877 3720
PassMark - CPU mark 29474 28390

Compare specifications (specs)

AMD Ryzen 9 8945HS AMD Ryzen 7 7840H

Essentials

Launch date 6 Dec 2023 Jan 2023
Place in performance rating 191 231

Performance

Base frequency 4 GHz 3.8 GHz
Die size 178 mm² 178 mm²
L1 cache 64 KB (per core) 64K (per core)
L2 cache 1 MB (per core) 1MB (per core)
L3 cache 16 MB (shared) 16MB (shared)
Manufacturing process technology 4 nm 4 nm
Maximum core temperature 100°C 100°C
Maximum frequency 5.2 GHz 5.1 GHz
Number of cores 8 8
Number of threads 16 16
Transistor count 25,000 million 25,000 million
Unlocked

Memory

ECC memory support
Supported memory types DDR5 DDR5-5600 MHz, Dual-channel

Compatibility

Configurable TDP 35-54 Watt 35-54 Watt
Max number of CPUs in a configuration 1 1
Sockets supported FP8 FP8
Thermal Design Power (TDP) 45 Watt 35 Watt

Peripherals

PCIe configurations Gen 4, 20 Lanes, (CPU only) Gen 4, 20 Lanes, (CPU only)